•Thyroid problems, especially subclinical or borderline hypothyroidism, are rapidly increasing in India, affecting 8-9% of adults.
•Borderline thyroid means TSH levels are slightly off, but T3 and T4 remain normal; often asymptomatic initially.
•Causes include historical iodine deficiency, lifestyle factors like pollution, obesity, stress, aging, and autoimmune conditions like Hashimoto's thyroiditis.
•Women are more susceptible, with hormonal changes during pregnancy, postpartum, and perimenopause increasing risk.
•Subtle symptoms like fatigue, weight gain, hair loss, mood swings, and menstrual changes should not be ignored; retesting and monitoring are crucial.
